Source/WebKit/win/WebCache.cpp

   1 /*
   2  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "WebKitDLL.h"
  28 #include "WebCache.h"
  29
  30 #include "CFDictionaryPropertyBag.h"
  31 #include <WebCore/ApplicationCacheStorage.h>
  32 #include <WebCore/MemoryCache.h>
  33 #include <WebCore/CrossOriginPreflightResultCache.h>
  34
  35 // WebCache ---------------------------------------------------------------------------
  36
  37 WebCache::WebCache()
  38 : m_refCount(0)
  39 {
  40     gClassCount++;
  41     gClassNameCount.add("WebCache");
  42 }
  43
  44 WebCache::~WebCache()
  45 {
  46     gClassCount--;
  47     gClassNameCount.remove("WebCache");
  48 }
  49
  50 WebCache* WebCache::createInstance()
  51 {
  52     WebCache* instance = new WebCache();
  53     instance->AddRef();
  54     return instance;
  55 }
  56
  57 // IUnknown -------------------------------------------------------------------
  58
  59 HRESULT STDMETHODCALLTYPE WebCache::QueryInterface(REFIID riid, void** ppvObject)
  60 {
  61     *ppvObject = 0;
  62     if (IsEqualGUID(riid, IID_IUnknown))
  63         *ppvObject = static_cast<WebCache*>(this);
  64     else if (IsEqualGUID(riid, IID_IWebCache))
  65         *ppvObject = static_cast<WebCache*>(this);
  66     else
  67         return E_NOINTERFACE;
  68
  69     AddRef();
  70     return S_OK;
  71 }
  72
  73 ULONG STDMETHODCALLTYPE WebCache::AddRef(void)
  74 {
  75     return ++m_refCount;
  76 }
  77
  78 ULONG STDMETHODCALLTYPE WebCache::Release(void)
  79 {
  80     ULONG newRef = --m_refCount;
  81     if (!newRef)
  82         delete(this);
  83
  84     return newRef;
  85 }
  86
  87 // IWebCache ------------------------------------------------------------------------------
  88
  89 HRESULT STDMETHODCALLTYPE WebCache::statistics(
  90     /* [in][out] */ int* count,
  91     /* [retval][out] */ IPropertyBag ** s)
  92 {
  93     if (!count || (s && *count < 4))
  94         return E_FAIL;
  95
  96     *count = 4;
  97     if (!s)
  98         return S_OK;
  99
 100     WebCore::MemoryCache::Statistics stat = WebCore::memoryCache()->getStatistics();
 101
 102     static CFStringRef imagesKey = CFSTR("images");
 103     static CFStringRef stylesheetsKey = CFSTR("style sheets");
 104     static CFStringRef xslKey = CFSTR("xsl");
 105     static CFStringRef scriptsKey = CFSTR("scripts");
 106 #if !ENABLE(XSLT)
 107     const int zero = 0;
 108 #endif
 109
 110     RetainPtr<CFMutableDictionaryRef> dictionary(AdoptCF,
 111         CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
 112
 113     RetainPtr<CFNumberRef> value(AdoptCF, CFNumberCreate(0, kCFNumberIntType, &stat.images.count));
 114     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
 115
 116     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.count));
 117     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
 118
 119 #if ENABLE(XSLT)
 120     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.count));
 121 #else
 122     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
 123 #endif
 124     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
 125
 126     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.count));
 127     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
 128
 129     COMPtr<CFDictionaryPropertyBag> propBag = CFDictionaryPropertyBag::createInstance();
 130     propBag->setDictionary(dictionary.get());
 131     s[0] = propBag.leakRef();
 132
 133     dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
 134
 135     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.size));
 136     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
 137
 138     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.size));
 139     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
 140
 141 #if ENABLE(XSLT)
 142     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.size));
 143 #else
 144     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
 145 #endif
 146     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
 147
 148     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.size));
 149     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
 150
 151     propBag = CFDictionaryPropertyBag::createInstance();
 152     propBag->setDictionary(dictionary.get());
 153     s[1] = propBag.leakRef();
 154
 155     dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
 156
 157     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.liveSize));
 158     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
 159
 160     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.liveSize));
 161     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
 162
 163 #if ENABLE(XSLT)
 164     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.liveSize));
 165 #else
 166     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
 167 #endif
 168     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
 169
 170     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.liveSize));
 171     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
 172
 173     propBag = CFDictionaryPropertyBag::createInstance();
 174     propBag->setDictionary(dictionary.get());
 175     s[2] = propBag.leakRef();
 176
 177     dictionary.adoptCF(CFDictionaryCreateMutable(0, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
 178
 179     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.images.decodedSize));
 180     CFDictionaryAddValue(dictionary.get(), imagesKey, value.get());
 181
 182     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.cssStyleSheets.decodedSize));
 183     CFDictionaryAddValue(dictionary.get(), stylesheetsKey, value.get());
 184
 185 #if ENABLE(XSLT)
 186     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.xslStyleSheets.decodedSize));
 187 #else
 188     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &zero));
 189 #endif
 190     CFDictionaryAddValue(dictionary.get(), xslKey, value.get());
 191
 192     value.adoptCF(CFNumberCreate(0, kCFNumberIntType, &stat.scripts.decodedSize));
 193     CFDictionaryAddValue(dictionary.get(), scriptsKey, value.get());
 194
 195     propBag = CFDictionaryPropertyBag::createInstance();
 196     propBag->setDictionary(dictionary.get());
 197     s[3] = propBag.leakRef();
 198
 199     return S_OK;
 200 }
 201
 202 HRESULT STDMETHODCALLTYPE WebCache::empty( void)
 203 {
 204     if (WebCore::memoryCache()->disabled())
 205         return S_OK;
 206     WebCore::memoryCache()->setDisabled(true);
 207     WebCore::memoryCache()->setDisabled(false);
 208
 209     // Empty the application cache.
 210     WebCore::cacheStorage().empty();
 211
 212     // Empty the Cross-Origin Preflight cache
 213     WebCore::CrossOriginPreflightResultCache::shared().empty();
 214
 215     return S_OK;
 216 }
 217
 218 HRESULT STDMETHODCALLTYPE WebCache::setDisabled(
 219     /* [in] */ BOOL disabled)
 220 {
 221     WebCore::memoryCache()->setDisabled(!!disabled);
 222     return S_OK;
 223 }
 224
 225 HRESULT STDMETHODCALLTYPE WebCache::disabled(
 226     /* [out][retval] */ BOOL* disabled)
 227 {
 228     if (!disabled)
 229         return E_POINTER;
 230     *disabled = WebCore::memoryCache()->disabled();
 231     return S_OK;
 232 }